Concrete-floor construction.



C. B. ASHER.

CONCRETE FLOOR CONSTRUCTION.

APPLICATION FILED MAR. 28, 1911.

Patented Oct. 17, 1911..

2 SHEETE-EHBET 1.

3110 0144 01; Claws/2e attorneys,

O. B. ASHER.

CONCRETE FLOOR OONSTRUOTION.

Anmonlon FILED MAR. 28. 1911.

Patented Get. 17, 1911.

2 SHEETS-811315131.

r l i a reinforced concrete floor having a plurality -CLYDE B. AS HER, OF WASHINGTON, DISTRICT OF COLUMBIA.

CONCRETE-FLOOR CONSTRUCTION.

"Specification of Letters 1atent.

Patented Oct. 17, 1911-.

Application tiled March 28 1911. Serla1No.61 7,386

To all whom ii ma'y concern:

Be it known that I, CLYDE B. Aswan, citizen of the United States, residing at -\Vashington, in the District of Columbia, have invented certain new and useful Improve- Construction, of

inents fin Concrete-Floor which the following is a specification.

This invention relates to reinforced concrete floor construction for fire proof buildings and the like.

The object-of the invention is to provide of hollow tiles embedded therein and each provided with a lateral flange or lip adapted to engage the lip of an adjacent tile, thereby tdevenly space said tiles and also to produce intermediate passages for the reception of a concrete filling.

A further object 'of the invention is to reinforce andstrengthen the floor by the provision ofintersecting rods or bars, which latter rest on ribs formed on the lateral lips or fianges of the tilesand serve to elevate the rods above the-base ofsaid tiles.

A further objectis to provide a hollow tile having a solid bottom or base constituting a ceiling slab and provided with independent horizontal passages opening through the opposite ends thereof so as to lighten the tile-and consequently reduce the dead weight of the floor.

A further object is to provide the tiles with removable plates, which latter form closures for the open ends thereof and serve to prevent the entrance of concrete or other plastic material when forming the floor surface.

A still further objcct of the invention is generally to improve this class of devices so as to increase their utility, durability and efficiency.

Further objects and advantages will 'appear in the following description, it being understood that various changes-in form, proportions and minor details of construction may be resorted to within the scope of the appended claims.

For a full understanding of the invention and the merits thereof, reference is to be had to the following description and accompanying drawings, in which;

Figure 1' is'a vertical sectional view of a reinforced concretecfloor constructed in accdniancowithmyiinvention; Fig 2 is a, simi-.

and looking in the direction of the arrow; Fig. 3 is aperspective view of one of the hollow blocks or tiles detached; Fi 4 is a perspective view of one of the, en plates or closures for the tile, detached; Fig. 5 is a perspective view illustrating a modified form of closure; Fig. 6 is 'a similar view, illustrating a further modification. Fig. 7 is a top plan view of a, portion of a floor with the concrete filling removed, showing the manner of arranging the tiles between the supporting girders; Fig. 8 is a perspective view illustrating another form of closure for the tile.v I

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

In constructing a reinforced concrete floor in accordance with the present invention,

I provide a plurality of hollow tiles 5,

preferably substantially rectangular in shape. and formed of terra-cotta, concrete or other material, said tiles being arranged in parallel rows between suitable supporting girders or beams 6, as best shown in Fig. 2 of the drawings.

The tiles 5 are provided with intersecting partitions 7 defining independent compart-. ments 8 opening through the opposite ends thereof, the exterior walls of the tiles being provided with dove-tail recesses or grooves 10 adapted to receiveconcrete or other filling material, indicated at 11 so as to form a bond bet-ween the tiles and concrete and thus assist in preventing accidental displacement of said tiles.

Each tile is provided with a solid top 12 and an integral bottom or base 13, which latter constitutes a ceiling slab so that when said-tilesare assembled to form a floor, the lower facesl3 of the tiles will present a continuous uninterrupted surface from one girder to the other. i

The lower face of the base of each tile is provided with dove-tail grooves or recesses 14-, similar in co'nstructionto the grooves 10 and which serve to receive the surface plaster 15 of the ceiling, the peculiar shape of the grooves 14 forminga bond for the plaster and preventing displacement thereof.

The ends of each tile, at the base thereof, are preferably extended longitudinally to form flanges or lips 16 adapted to abut against the flange of an adjacent tile, thereby to form an intermediate cement receiving After the tiles have been assembled in this passage'17. The side walls of the tiles are manner, the concrete or other plastic matealso preferably curved or bent laterally at rial 11 is introduced within the passages 1 the base'thereof to form similar lips or and 20 and spread over the top of the tiles flanges 18, which abut against correspondto the desired depth. 1

ing flanges on the tiles of an adjacent row, If desired, suitable anchoring members as indicated at 19, thereby to form auxil- 29 may be seated-in dove-tail recesses ;30 iary passages 20. If desired however, the formed in the side flanges 18 with their up? lips 16 and 18 may be straight instead of per ends extended within the adjacent cecurved and in some cases either or both sets ment receiving passages 17. When the an- 7 of lips may be omitted.' chorin members 29 are employed, the u Secured to or formed integral with the per cm s thereof will be preferably ext-en l flanges 18 of the tiles, are upstanding ribs ed above and bent over the adjacent auxil- 21 which extend to the ends of the' flanges iary reinforcing rods 23.

5 16 and form supports for reinforcing rods Theupper edge of the metal constituting 22, the latter being embedded in the con-' each plate or closure 25, is preferably bent crete between the passages 17, as shown. laterally to form a horizontally disposed Embedded in the concrete in the passages 20, flange 31 adapted to bear against the top of are auxiliary rods 23 which intersect the the adjacent tile to assist in holding the rods 22 at tilGrjOiIltS 19 and bear against plates in position thereon. 1

said rods so as to form a reinforcement be- In Fig. 5 of the drawiugs,'there is illustween thetiles. trated' a modified form of plate or closure,

The outer ends of the partitions -7 are in which the .tongues 26 are dispensed with, preferably curved to conform to and graduthe opposite vertical edges of the plates be- 5 ally merge into the flanges 16 so'asnot to ing bent laterally and inwardly to form obstruct the cement receiving passages 17, flanges 32 adapted to enter recesses 33 there being spaced dove-tail recesses 24 formed in the opposite side walls of the tile, formed in the ends of the tiles for engagethe construction and operation of the cloment with suitable plates or closures 25. sure being otherwise similar to that shown 1 a The plates or closures 25 are each prcferin'Fig. 4 of the drawings.

g ably formed of a single sheet of metal A further modification is shown in Fig. 6

': having the intermediate portions thereof of the drawings, in which the opposite verressed laterally to form vertically disposed tical edges'of the plates or closures are bent ore-tail ribs or tongues 26 adapted to enter to produce angularly disposed spring lips the recesses 24, the lower edge of each plate 34 adapted to frictionally engage the adja- I or closure 25 being provid d with a recess cent side wallsof the tiles, thus holding tlu 27 adapted to receive the central partition plates in position thereon without the lie of the tile and the opposite ends f id cessity of forming seating grooves or othe late being notched at 28 to accommodate QC SSOS n Sa d tiles.

the side walls of the tile so that the plates In Fig. 8, there is shown a closure 3v or closures, when placed on the tiles, will rmed of tcrrwcotta, concrete or othe assume a position in a plane at substantially plastic material, said closure being provide right angles to the flat tops 12 thereof and with ribs or tongues 36 adapted to fit in 001 thus effectually prevent the entrance of cel'cspondingly shaped grooves in the ends r ment or concrete into the compartments or the adjacent tiles. If desired however, tl'.

chambers 8 when applying the filling mar bs 36 may be dispensed with and the 011 terial. sure supported on the tile by wires or 0th In constructing a floor, a suitable form is fastening devices, and if necessary, Sei first located-between the girders or beams (i, i f comfrete closures may be T after which the tongues .26 of the end plates mfm'ced y Sultan manneror closures are introduced in the recesses 24 mile the tiles '0 Show s pp d t and said plates moved downwardly in the tween iron girders. it will of course be u direction of the base of the tiles so as to ler tood that the floor may be supported close the opposite ends thereof. The tile concrete girders or attached directly to t are then arranged in parallel rows on the i fi Walls partitions of a building, v.11 form with the end flanges 16 of the tiles t departin from the spirit of the inw abutting and with the side flanges l8 dislion. it wil also be understood that 1 posed in contact with each other so as to tiles may he made in different sizes a form the intermediate cement receiving passhapes and provided with a single chum sages l7 and 20, the reinforcing rods 22 heor com 'mrtm-rnt, or a plurality thereof, ing subsequently extended through the pasthat in some cases, the floor may be c sages 17 with their lower edges in contact structerl without the concrete filling mate: with or. above the ribs 21 and the auxiliary covering the tops of the tiles. rods 23 positioned in the passages 20 and Particular attention is here called to 5 allowed to rest on the reinforcing rods 22. fact that the bottoms of the tiles fdrlr i l l l rality of hollow tiles, each including an integral body portion having a flat base constituting a ceiling slab and provided with longitudinal chambers opening through the opposite ends thereof, there being vertical recesses formed in the end walls of the tiles at said chambers, end plates having tongues slidably mounted in the recesses in the end .walls of the tiles and forming closures for,

thechambers, concrete interposed between the tiles, and reinforcing rods arranged between the tiles and embedded in the concrete.

3. In concrete floor construction, a plurality of substantially rectangular hollow tiles, each including an integral body portion having laterally extending side and end flanges adapted to abut against corresponding flanges formed on adjacent tiles to produce intermediate passages, said tiles being provided with horizontally disposed cham-' bers opening through the opposite ends of the tiles at said end flanges, the side flanges of the tiles being formed with continuous upstanding ribs, plates forming closures for the open ends of the tiles, concrete seated in the passages and extending over the tops of the tiles, and intersect-ing reinforcing rods seated in the passages and embedded in the concrete, some of said reinforcing rods resting directly on the upstanding ribs.

'4. In concrete floor construction, a pluralityof substantiallyrectangular tiles each including an integral body portion having laterally extending side and end flanges adapted to bear against corresponding flanges formed on an adjacent tile to produce intermediate cement receiving passages, continuous upstanding ribs formed on the side flanges and intersecting the end flanges, concrete filling said passages, reinforcing rods embedded in the concrete in some of the passages and resting directly on the ribs, and auxiliary reinforcing rods embedded in the concrete in other of said passages and resting on the first mentioned rods.

5. In concrete floor construction, a plurality of hollow tiles having laterally extending end and side flanges and provided with horizontal chambers opening through the opposite ends of the tiles, there being vertically disposed dove-tail recesses formed in the ends of said tiles, end plates having correspondingly shaped tongues seated in the dove tail recesses in the tiles and having their upper ends provided with laterally extending flanges for engagement with the tops of the tiles and their lower ends provided with recesses to accommodate the side walls of the tiles, concrete interposed between the tiles, and reinforcing rods arranged between the tiles and intersecting at the abutting edges of the side flanges.

6. In concrete floor construction, a plurality of substantially rectangular hollow tiles, each including an integral body portion having a solid base constituting a ceiling slab and provided with laterally extending end and side flanges, the bottom, side and top walls 'of the tiles being provided with cement receiving grooves, said tiles being formed with intersecting partitions defining independent chambers opening throughlhe opposite ends thereof, continuous upstanding longitudinal ribs formed on the side flanges of the tiles, concrete interposed between the tiles, reinforcing rods resting on the ribs, and auxiliary reinforcing rods'resting on the first mentioned rods and embedded in the concrete.

7. A tile including an integral body portion provided with side and end flanges, there being continuous upstanding ribs formedton the side flanges and intersecting the end flanges of the tile.

In testimony whereof, I aflix mysignature in presence of two witnesses.

CLYDE B. ASHER. [1 s.]

Witnesses:

F. CLYDE GIDEON, A. M. BIGELOW.

Copies of this patent may be obtained for flve cents each, by addressing the Commissioner of Patents, Washington. I). C. 

